Airtac MG Stainless Steel Mini Air Cylinder MG25X350S
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG25X350S is a genuine double acting JIS-standard round-body mini air cylinder with a Ø25mm bore and 350mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke350 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG25X350S
With a 25 mm bore and a long 350 mm stroke, this double acting MG cylinder pushes with about 245 N at 0.5 MPa (343 N at 0.7 MPa) and retracts with 206 N to 288 N, so it suits longer-reach pick-and-place and feed motions in the 25 mm force class. The riveted round body pairs a SUS304 stainless barrel with a hard-chrome plated rod, an edge over painted-steel minis in damp or washdown-prone corners of a packaging line.
Because the MG follows the JIS mini-cylinder standard, its mounting and accessory footprint drops straight into standard JIS brackets and I/Y rod knuckles, which keeps spares interchangeable across a machine fleet. The fitted magnet (the S code) accepts CMSG, DMSG or EMSG switches for end-position sensing, and the fixed anti-impact bumper pad at each stroke end softens direction change. As a rule of thumb, plan on roughly 147 N of real work at 0.5 MPa (about 60% of the rating), which is roughly 15 kg of vertical lift with margin.
Airtac MG Stainless Steel Mini Air Cylinder MG25X350S Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG25X350S |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MG Stainless Steel Mini Air Cylinder MG25X350S
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 25 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG25X350S Is Used
Bottle push-off on packaging conveyors
The 350 mm stroke sweeps a full lane width while the 245 N push at 0.5 MPa easily clears 15 kg of glass or PET bottles sideways, and the stainless barrel shrugs off spill washdown.
Sample tray indexing in lab automation
A 350 mm reach moves microplate trays between stations, the magnet and a CMSG switch confirm end positions, and the JIS footprint matches standard lab-machine brackets.
Lid lift on a food-tray sealing station
Lifting a sealing head of about 12 to 15 kg vertically fits the roughly 15 kg lift margin of this bore, with the bumper pad damping the drop at stroke end.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG25X350S the Right Cylinder?
Compare by 0.5 MPa push force: the 20 mm bore below delivers about 157 N, while the 32 mm bore above reaches about 402 N, so pick the 25 mm only if your load sits between roughly 100 and 150 N with margin. At 350 mm stroke the rod is well extended, so keep side loads low and guide the load externally to protect the 10 mm rod from bending. Note that a plain MG drifts when air is lost or the valve centres, so add an external rod lock or pilot check valve if the load must stay put. Order the -S magnet if you need CMSG/DMSG/EMSG sensing; mounts are LB foot, FA flange, CB clevis or SDB pivot, and for high speed or heavy loads step up to the cushioned MGC.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA / CB / SDB) & knuckle
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG25X350S FAQ
At 0.5 MPa it pushes with 245.3 N and pulls with 206.1 N; at 0.7 MPa those rise to 343.4 N and 288.5 N. The theoretical maximum is 50 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, and the port is 1/8" on this 25 mm bore.
Yes. The S in the model code means a magnet is built into the piston, so CMSG, DMSG or EMSG reed/electronic switches mount directly on the stainless barrel to signal rod position. Without the -S option the piston is not detectable.
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